Montessori Primary Guide
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Numbers through Ten
  Number Rods
  Sandpaper Numbers
  Number Rods and Cards
  Spindle Boxes
  Concept of Zero
  Cards and Counters
  Memory Game
Decimal System
  Introduction to quantity
  Formation of Numbers
  Stamp Game
  Dot Game
  Word Problems
Linear & Skip Counting
  Teens: Quanity
  Teens: Symbol
  Tens: Association
  Linear Counting
  Skip Counting
  Number Roll
Tables of Arithmetic
  Addition Snake Game
  Strip Board - exercises
  Addition Strip Board
  Addition Charts
  Substraction Snake Game
  Substraction Strip Board
  Substraction Charts
  Multiplication Bead
  Multiplication Board
  Multiplication Charts
  Unit Division Board
  Division Charts
Passage to Abstraction
  Small Bead Frame
  Wooden Hierarchical Material
  Large Bead Frame
  Racks and Tubes

Memory Game


-  11 pieces of paper folded and placed in a container. Each has a number written on it, ranging from 0 to 10.
- 10 pieces of material that you can used without taking a whole set. (cotton balls, doilies, yellow and blue cloths, pencils, crayons, paper, metal insets for language and for maths, sandpaper letters)
- 11 sheets of paper.
- 11 trays


  • Invite 11 children and have them all sit in a circle.
  • Give each child a yellow sheet of paper and tell them to put it in front of them. Then give them each a tray and have them put it on the sheet of paper.
  • Have each child take a ticket from the basket but tell them not to look at their ticket!
  • Tell the children that you are going to come around and tell them what to get. They will then look at their folded ticket and will be excussed to go get however many of the objects you told them to get by the number written on the ticket.
  • Go around the circle and tell each child what to get. For example, cotton balls, books, colored pencils, paper, etc.
  • Excuse each child separately.
  • Once all of the children have collected what they had been asked for and back at the circle, go around the circle and have each child count out loud how many objects he brought back. Then have him check his ticket to see if he brought back the correct amount.
  • For the child who had the ticket of 0, discuss informally how because his ticket had 0, he brought back nothing because zero mean nothing.
  • Collect the tickets and have the children separatly put the materials back on the shelves.


To train the child’s memory by asking him to retain a numerical symbol in his mind.
To help the child transfer the knowledge of the numbers o to 10 from the “specific” material to the objects of daily life.

Control of Error
The child’s own knowledge. 

Approximatly 4 years, at the end of Group 1

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